Migrated several tests from blink to V8 repository.

test/webkit/array-sort-sparse.js

Index: test/webkit/array-sort-sparse.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/array-sort-sparse.js
similarity index 82%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/array-sort-sparse.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..41a91f11bd3eeba4ea031c7f5aef17706600d124 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/array-sort-sparse.js
@@ -22,10 +22,14 @@
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+"This tests that arrays and array like objects containing holes are sorted correctly."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
-
+function testSort(x)
+{
+    [].sort.call(x)
+    return x[0] < x[1] && x[2] === undefined && !(3 in x) && x.length == 4;
+}
 
+shouldBeTrue("testSort([,undefined,0,1])");
+shouldBeTrue("testSort({length:4,1:undefined,2:0,3:1})");